Overview
The COSMIC (4) SLS is Duotone’s SLS-tier wave board for advanced to expert riders in powerful ground-swell conditions. It is not designed for onshore waves; its focus is side/side-off and offshore ground swell at high-performance wave spots (Maui, Cape Town, Brittany, Cabo Verde, Ireland, Chile, Mauritius).
Construction: FULL CUSTOM SLS with S_GLASS+ reinforcement. The SLS build uses a lower carbon content than D/LAB; Innegra is replaced by S_GLASS+. The FULL CUSTOM production process delivers consistent weight and flex across every board leaving the factory.
Shape system: Built on the SYNCED CURVES CONCEPT, developed using the proprietary AI_BOARD_3D software. Rocker line, outline and rail curvature are synchronized throughout the board length so the three shape elements amplify rather than cancel each other.
3-STAGE ROCKER: flat mid-section in-between the straps for a stable stance; nose rocker activates right in front of the front straps for front-foot-initiated bottom turns; kickstarter tail-kick (progressive from the last 4–5cm) enables tight, snappy top turns. The COSMIC (4) SLS update adds a touch more nose rocker for improved white-water crossing.
Outline: narrower nose and tail than the GRIP model. Narrower nose delivers more control at speed in ground swell. Narrower tail improves control in higher waves.
Bottom shape: V double concave in the front transitions to a flat double concave underfoot, then mono concave toward the tail for high-speed rail-to-rail stability.
2027 changes:
> Refined tail outline: improved turn-ability and grip
> Refined tuck line (mid-front): quicker acceleration and improved control
> Added nose rocker: cleaner white-water crossings
Target rider: advanced to expert wave windsurfer
Best for: powerful ground swell, side and side-off wind angles, World Cup wave spots
Available sizes: 74, 76, 78, 82, 88, 94, 106 liters Package: includes fins (Slot Box)
STOP FIGHTING FOR GRIP. ON A WAVE THAT SCARES EVERYONE ELSE, THE COSMIC (4) SLS HOLDS ITS LINE — AND BEGS FOR MORE. YOUR BEST TURN IS WAITING.
Specs
| BOARD | ULTRA GRIP SLS 69 | ULTRA GRIP SLS 76 | ULTRA GRIP SLS 82 | ULTRA GRIP SLS 88 | ULTRA GRIP SLS 94 | ULTRA GRIP SLS 106 |
| VOLUME (L) | 69 | 76 | 82 | 88 | 94 | 106 |
| WIDTH (CM) | 54 | 57 | 58.5 | 59.5 | 60.5 | 63 |
| LENGTH (CM) | 219 | 220 | 221 | 223 | 225 | 228 |
| TECHNOLOGY | FULL CUSTOM SLS | FULL CUSTOM SLS | FULL CUSTOM SLS | FULL CUSTOM SLS | FULL CUSTOM SLS | FULL CUSTOM SLS |
| WEIGHT (KG) (+/-5%) | 5.80 | 6.00 | 6.10 | 6.30 | 6.50 | 6.80 |
| FITTINGS | Fin Set Quad (Slot|Slot) 7.5+13.5 | 3 x Strap Premium 2.0 | Fin Set Quad (Slot|Slot) 8.0+14.0 | 3 x Strap Premium 2.0 | Fin Set Quad (Slot|Slot) 8.0+14.0 | 3 x Strap Premium 2.0 | Fin Set Quad (Slot|Slot) 8.0+14.5 | 3 x Strap Premium 2.0 | Fin Set Quad (Slot|Slot) 9.0+15.0 | 3 x Strap Premium 2.0 | Fin Set Quad (Slot|Slot) 9.5+16.0 | 3 x Strap Premium 2.0 |
| MAX. SAIL SIZE (M²) | 5.0 | 5.3 | 5.7 | 5.7 | 6.2 | 6.2 |
| BEST MATCHING ION BOARDBAG* | Windsurf Core 230×58 | Windsurf Core 230×58 | Windsurf Core 235×61 | Windsurf Core 235×61 | Windsurf Core 235×61 | Windsurf Core 240×66.5 |
Reviews
There are no reviews yet.